ABB S202M-K40 — Miniature Circuit Breaker

Part number	S202M-K40
Brand	ABB
Category	Circuit Breaker
Description	Miniature Circuit Breaker
Manufacturer	ABB
Product Type	Miniature Circuit Breaker
Product Line	Other
Part Number	S202M-K40
GTIN	4016779600804
Tripping Mechanism	Delayed thermal and electromechanical tripping mechanisms
Current Rating	40 Amperes
Number of Poles	2 poles
Status Indicator	Red/green LED indicator
Terminal Type	Screw terminals
Actuator Type	Toggle
Trip Curve	C-curve
Minimum Operational Voltage	12 Volts AC/DC
Power Loss	9.6 Watts
Maximum Operational Voltage	125 Volts DC/440 Volts AC
Short-Circuit Breaking Capacity	18.8 to 25 kiloamperes at 230 Volts AC, 10 kiloamperes at 400 Volts AC, and 15 kiloamperes at 440 Volts AC
Rated Impulse Withstand Voltage	4 kilovolts
Rated Frequency	50 to 60 Hertz

The ABB part number S202M-K40 is a compact miniature circuit breaker designed for efficient circuit protection. With a current rating of 40 Amperes and equipped with delayed thermal and electromechanical tripping mechanisms, it ensures reliable operation under various conditions.

Compatibility data for this part number is being verified. Send an RFQ with your equipment model and serial — our suppliers confirm fitment before quoting.

Data compiled from 1 verified source. Last reviewed 2026-08-16.